I just ordered some marvelous paper from a site. They are new at online
sales and were wondering if I could sent them a photo of what I create
with the paper.

Hum, I used their paper for a card I was going to swap here. . .so what is
the general thought on this topic? For instance, my candle pictures are
two vendors that also solicit photos for their sites. What's a stamper to
do? What's kosher?

Are you asking if it's okay to send images that are uploaded here to other companies? If I'm understanding your question the answer is it's your artwork and you can share it with whoever you like....and you should! I love it when customers send me pictures of what they've done with my stamps and I'm sure the paper site and the candle site would love it too. Is that your question?